Integrability and exact solution for coupled BCS systems associated with the $su(4)$ Lie algebra
Strongly Correlated Electrons
2015-06-24 v1 Statistical Mechanics
Abstract
We introduce an integrable model for two coupled BCS systems through a solution of the Yang-Baxter equation associated with the Lie algebra . By employing the algebraic Bethe ansatz, we determine the exact solution for the energy spectrum. An asymptotic analysis is conducted to determine the leading terms in the ground state energy, the gap and some one point correlation functions at zero temperature.
Cite
@article{arxiv.cond-mat/0205124,
title = {Integrability and exact solution for coupled BCS systems associated with the $su(4)$ Lie algebra},
author = {Xi-Wen Guan and Angela Foerster and Jon Links and Huan-Qiang Zhou},
journal= {arXiv preprint arXiv:cond-mat/0205124},
year = {2015}
}
Comments
15 pages